package com.example.imoocmall.util;

import com.example.imoocmall.common.Constant;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;

/**
 * 生成二维码工具
 */
public class QRCodeGenerator {
    public static void generateQRCodeImage(String text,int width,int height,String filePath) throws WriterException, IOException {
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE,width,height);
        Path path = FileSystems.getDefault().getPath(filePath);
        MatrixToImageWriter.writeToPath(bitMatrix,"PNG",path);
    }

    public static void main(String[] args) throws IOException, WriterException {
        generateQRCodeImage("hello",350,350,"E:/java/src/main/java/com/pictures/QRTest.png");
    }
}
